I don't know any technical reasons why LightScribe would damage the drive but the more you use anything, the more wear will occur. I am sure the laser is designed to output the required power to etch a label, but using LightScribe will work the drive harder.
If you burned 100 discs at 8X and lightscribed none then the drive will be running for just over 13 hours burning discs (presuming an 8X burn takes approx 8min).
If you burned 100 discs and LightScribed them all then the time the drive is running the laser and motor would be 8min/burn + 20min/disc for Lightscribe = 46 hours of run time.
The drive is running nearly 4X as long using LightScribe.
If the manufacturers claims are correct then a drive rated at 100,000 hours before failiure (on average) would burn and Scribe 217391 DVDs.
Thats a hell of a lot of Pr0n! :iagree: :bigsmile: :eek:
In short, I wouldn't worry about it too much. These examples are extremes and you'd probably only Scribe a small % of your discs so any increased wear would be insignificant.